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Finding the Fourth Proportional to 12,235.70, 16,893.69 and 9,049.70

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Solution

The fourth proportional to 12,235.70, 16,893.69 and 9,049.70 is: 12,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.70 : 16,893.69 = 9,049.70 : x
  2. Step 2: Convert to fraction form
    12,235.70/16,893.69 = 9,049.70/x
  3. Step 3: Cross multiply
    12,235.70x = 16,893.69 × 9,049.70
  4. Step 4: Simplify right side
    12,235.70x = 152,882,826.39
  5. Step 5: Solve for x
    x = 152,882,826.39/12,235.70
  6. Step 6: Final answer
    x = 12,494.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.